Colour Block

Colour blocking can be a hard look to pull off. Cheryl Cole knew she had to wow the world when she arrived for the first round of X Factor USA auditions, and that she did, pulling off both the colour block trend and the tricky palazzo pants look. Not a major fan of hers, but feeling a bit sorry for her now she's been sacked.

Here she is in Oscar de la Renta and Diane Von Furstenberg. Also pictured, Rihanna in Maria Lusa, Cacharel and Giuseppe Zanotti; and Camilla Belle in Gucci

But way before any of these celebrities, Princess Diana did colour blocking first. The image of her alone outside the Taj Mahal is simply iconic. And proves her style truly was timeless and classic.